Light spark knock at low engine speeds is not harmful to
your engine. However, continued heavy spark knock at
high speeds can cause damage and immediate service is
required. Engine damage resulting from operation with a
heavy spark knock may not be covered by the new
vehicle warranty.
Poor quality gasoline can cause problems such as hard
starting, stalling and hesitations. If you experience these
symptoms, try another brand of gasoline before consid-
ering service for the vehicle.
Over 40 auto manufacturer’s world wide have issued and
endorsed consistent gasoline specifications (the World-
wide Fuel Charter, WWFC) to define fuel properties
necessary to deliver enhanced emissions, performance,
and durability for your vehicle. The manufacturer recom-
mends the use of gasoline that meets the WWFC speci-
fications if they are available.
Reformulated Gasoline
Many areas of the country require the use of cleaner
burning gasoline referred to as Reformulated Gasoline.
Reformulated gasoline contains oxygenates, and is spe-
cifically blended to reduce vehicle emissions and im-
prove air quality.
The manufacturer strongly supports the use of reformu-
lated gasoline. Properly blended reformulated gasoline
will provide excellent performance and durability for the
engine and fuel system components.
Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with oxy-
genates such as 10% ethanol, MTBE, and ETBE. Oxygen-
ates are required in some areas of the country during the
winter months to reduce carbon monoxide emissions.
Fuels blended with these oxygenates may be used in
your vehicle.
260
STARTING AND OPERATING
Summary of Contents for 2004 Liberty
Page 2: ......
Page 144: ......
Page 149: ...INSTRUMENT PANEL AND INTERIOR CONTROLS UNDERSTANDING YOUR INSTRUMENT PANEL 149 4 ...
Page 150: ...INSTRUMENT CLUSTER 150 UNDERSTANDING YOUR INSTRUMENT PANEL ...
Page 206: ......
Page 247: ...STARTING AND OPERATING 247 5 ...
Page 266: ...Minimum Vehicle Requirements for Trailer Towing 266 STARTING AND OPERATING ...
Page 282: ......
Page 285: ...2 4L ENGINE MAINTAINING YOUR VEHICLE 285 7 ...
Page 286: ...3 7L ENGINE 286 MAINTAINING YOUR VEHICLE ...
Page 352: ...352 IF YOU NEED CONSUMER ASSISTANCE ...
Page 356: ......
Page 357: ...INDEX 10 ...